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Inicio Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) 18F-FDG PET/CT, cytoreductive surgery and intraperitoneal chemohyperthermia for ...
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Vol. 35. Issue 4.
Pages 232-237 (July - August 2016)
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Vol. 35. Issue 4.
Pages 232-237 (July - August 2016)
Original Article
18F-FDG PET/CT, cytoreductive surgery and intraperitoneal chemohyperthermia for the therapeutic management in peritoneal carcinomatosis: A pilot study
18F-FDG PET/TC, cirugía citorreductora y quimiohipertermia intraperitoneal para el tratamiento terapéutico de la carcinomatosis peritoneal: estudio piloto
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A. Cistaroa,b,c,
Corresponding author
a.cistaro@irmet.com

Corresponding author.
, M. Cucinottad, L. Cassaliad, A. Priolae, S. Priolae, M. Pappalardof, P. Coppolinod, M. De Simoneg, N. Quartuccioh
a Positron Emission Tomography Centre IRMET S.p.A., Affidea, Turin, Italy
b PET Pediatric AIMN InterGroup, Italy
c Institute of Cognitive Sciences and Technologies, CNR, Rome, Italy
d Nuclear Medicine Unit Department of Biomedical Sciences and of Mophologic and Functional Images, University of Messina, Italy
e Department of Diagnostic Imaging, San Luigi Gonzaga Hospital, University of Torino, Orbassano, Torino, Italy
f Department of Plastic and Reconstructive Surgery, E-DA Hospital, Kaohsiung, Taiwan
g Candiolo Cancer Institute – FPO, IRCCS, Unit of Surgical Oncology, Turin, Italy
h Wolfson Molecular Imaging Centre, The University of Manchester, Manchester, United Kingdom
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Tables (4)
Table 1. Population characteristics.
Table 2. Patients: overall results.
Table 3. Results–Untreated patients.
Table 4. Results – treated patients.
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Abstract
Aim

Peritoneal carcinomatosis is a common evolution of neoplasms and the terminal stage of disease. A new therapeutic technique, based on the total surgical removal of peritoneal lesions (peritonectomy procedure – PP) combined with the intraperitoneal chemohyperthermia (IPCH), has been developed. Proper patient selection is mandatory for optimizing the results of treatment. The aim of this study was to investigate the role of [(18)F]fluoro-2-deoxy-d-glucose Positron Emission Tomography/Computed Tomography (18F-FDG PET/CT) in patients with peritoneal carcinosis selected to undergo PP and IPCH. Furthermore, we aimed to identify characteristic patterns of abdominal18F-FDG uptake and to correlate these patterns with available anatomic findings after surgery.

Methods

Patients with either histologically confirmed peritoneal carcinosis or suspected upon clinical follow-up and/or imaging findings were prospectively submitted to pre-surgery 18F-FDG PET/CT scan. Only those patients without evidence of extra-peritoneal metastases at PET/CT scan were treated with PP and IPCH.

Results

11 patients with peritoneal carcinomatosis (5 colorectal, 4 ovarian, 1 pancreatic) and 1 unknown primitive cancer, were eligible for the study. In all cases PET/CT scan showed multiple peritoneal implants. In 6 out of 11 cases (54%) metastases were evidenced by 18F-FDG PET/CT: 2 cases with liver metastases; 1 case with bone metastases; 3 patients with lymph-node lesions. Two distinct imaging patterns, with focal or diffuse increased 18F-FDG uptake, were recognized.

Conclusions

PP+IPCH of patients selected by 18F-FDG PET/CT seems to be safe and feasible. PET/CT scan appears as a reliable tool for the detection, characterization of peritoneal implants with potential impact in the therapeutic management of these patients.

Keywords:
Peritoneal carcinomatosis
[(18)F]fluoro-2-deoxy-d-glucose Positron Emission Tomography/Computed Tomography
Cytoreductive surgery
Hyperthermic antiblastic peritoneal perfusion
Intraperitoneal chemohyperthermia
Resumen
Objetivo

La carcinomatosis peritoneal es una evolución común de las neoplasias y constituye el estadio terminal de la enfermedad. Se ha desarrollado una nueva técnica, basada en la extirpación quirúrgica de las lesiones peritoneales (procedimiento de peritonectomía – PP), combinada con quimiohipertermia intraperitoneal (IPCH). La adecuada selección de los pacientes es primordial, a fin de optimizar los resultados del tratamiento. El objetivo de este estudio fue investigar el papel de la tomografía de emisión de positrones con [(18)F]fluoro-2-deoxy-d-glucosa/tomografía computarizada (18F-FDG PET/TC) en pacientes con carcinomatosis peritoneal, seleccionados para someterse a PP e IPCH. Además, tratamos de identificar los patrones característicos de la captación abdominal de 18F-FDG y correlacionar dichos patrones con los hallazgos anatómicos disponibles tras la cirugía.

Métodos

Se realizaron exámenes 18F-FDG PET/TC de manera prospectiva, y previamente a la cirugía, a los pacientes con carcinomatosis peritoneal histológicamente confirmada, o sospechada mediante seguimiento clínico y/o hallazgos de imagen. Solo puede tratarse con PP y IPCH a aquellos pacientes que no reflejen evidencia de metástasis extraperitoneales en los exámenes PET/TC.

Resultados

Se seleccionó para el estudio a 11 pacientes con carcinomatosis peritoneal (5 colorrectales, 4 ováricas, una pancreática) y un cáncer primitivo desconocido. En todos los casos, el examen PET/TC reflejó múltiples implantes peritoneales. En 6 de los 11 casos (54%) las metástasis fueron evidenciadas mediante 18F-FDG PET/TC: 2 casos con metástasis hepáticas, un caso con metástasis óseas, y 3 pacientes con lesiones ganglionares. Se reconocieron 2 patrones de imagen distintos, con aumento de captación focal o difusa de 18F-FDG.

Conclusiones

La combinación PP+IPCH de los pacientes seleccionados mediante 18F-FDG PET/TC parece ser una técnica segura y factible. La PET/TC se revela como una herramienta fiable para la detección y caracterización de los implantes peritoneales, con un impacto potencial sobre el tratamiento terapéutico de dichos pacientes.

Palabras clave:
Carcinomatosis peritoneal
Tomografía computarizada/tomografía de emisión de positrones con [(18)F]fluoro-2-deoxy-d-glucosa (18F-FDG PET/CT)
Cirugía citorreductora
Perfusión hipertérmica antiblástica peritoneal
Quimiohipertermia intraperitoneal

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